[PATCH] remove redundant NULL checks before kfree() in sound/ and avoid casting pointers about to be kfree()'ed

Checking a pointer for NULL before calling kfree() on it is redundant,
kfree() deals with NULL pointers just fine.
This patch removes such checks from sound/

This patch also makes another, but closely related, change.
It avoids casting pointers about to be kfree()'ed.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/sound/oss/mpu401.c b/sound/oss/mpu401.c
index b66f53fa8db0..0aac54c68f01 100644
--- a/sound/oss/mpu401.c
+++ b/sound/oss/mpu401.c
@@ -1240,8 +1240,7 @@ void unload_mpu401(struct address_info *hw_config)
                 p=mpu401_synth_operations[n];
                 sound_unload_mididev(n);
                 sound_unload_timerdev(hw_config->slots[2]);
-                if(p)
-                        kfree(p);
+                kfree(p);
         }
 }